Thanks for all the input.
The major reason for having it at the top of the mizzen is the antenna
can attain a clear view (relatively) of the horizon. There is not a
lot of room on the stern rail as the mizzen boom gets a lot of use. A
alternative is on the first spreaders of the mizzen which is 5m above
the deck.
I guess this is the best alternative.
Been an interesting exercise.
Boat won't be back in the water for a few months yet as we are getting
a repaint and the teak deck replaced whilst we are in Thailand. Nice
job but takes time!!!!
Regards
Tony
S/V Ambrosia